Residency Program Director, Practice Management, and Administration
JoEllen Maurer, RPh, MHA

Degrees Received:

  • Bachelor of Science in Pharmaceutical Sciences, Ohio Northern University, 1989
  • Master of Healthcare Administration, University of Phoenix, 2012

Pharmacy/Clinical Experience:

  • St. Vincent Healthcare (Billings, MT); Clinical Pharmacist Specialist, Oncology – 2016- currentSt. Vincent Healthcare (Billings, MT)
    • Director of Pharmacy - 2020-present
    • Pharmacy Operations Manager – 2019-2020
    • Pharmacy Clinical Manager – 2013-2019
    • Residency Program Director – 2015-present
  • Fort Peck Indian Reservation – Indian Health Service (Poplar, MT & Wolf Point, MT)
    • Chief of Pharmacy – 2002-2013
    • IHS Billings Area representative on the IHS National P&T Committee – 2004-2013APPE Student Program Director – 2005-2013 Ambulatory Care Pharmacist – 1999-2013
  • Kroger Retail Pharmacy (Urbana, OH)
    • Pharmacy Manager – 1999
  • Ohio State Women’s Correctional Facility (Marysville, OH)
    • Director of Pharmacy – 1998-1999
  • Mercy Health Care System (Urbana, OH & Springfield, OH)
    • Assistant Pharmacy Director – 1994-1998
    • Long-term Care Pharmacy Consultant – 1989-1998Inpatient Pharmacist – 1989-1996 

Professional Interests:
Personal growth and leadership, professional development, team building

Personal Interests:
Cooking, quilting, gardening, and spending time with family


Drug Information and Residency Program Coordinator
Michaela Bruner, Pharm.D., BCPS

Degree Received:

  • Doctor of Pharmacy, University of Montana, Skaggs School of Pharmacy, 2019

Pharmacy/Clinical Experience:

  • St. Vincent Healthcare (Billings, MT)
    • Clinical Pharmacist 2020 - current
    • PGY-1 Resident 2019-2020

Professional Interests:
Critical care, infectious disease, emergency medicine, education

Personal Interests:
Michaela enjoys activities such as reading, crocheting, baking, cribbage, and playing piano. She also spends time outdoors skiing, gardening, playing volleyball, and ice fishing.


Ashton Larson, Pharm.D.

Degree Received:

  • Doctor of Pharmacy, University of Montana, Skaggs School of Pharmacy, 2019

Pharmacy/Clinical Experience:

  • St. Vincent Healthcare (Billings, MT)
    • Clinical Pharmacist 2020 - current
    • PGY-1 Resident 2019-2020
    • Pharmacy Intern 2016-2019

Professional Interests:
Emergency Medicine, Critical Care, Infusion Therapy

Personal Interests:
Ashton enjoys being outdoors, hiking, fishing, biking, and stopping to smell the roses. She enjoys watching football or any live sport event, as well as trying new restaurants and traveling. She also likes to play any and all varieties of Trivial Pursuit.


Service / Staffing and Orientation
Caleb Gee, Pharm.D.

Degree Received:

  • Doctor of Pharmacy, University of Montana, 2012

Pharmacy/Clinical Experience:

  • St. Vincent Healthcare (Billings, MT)
    • Clinical Pharmacist - 2013-2021

Professional Interests:
Pediatric Medicine, Pain Management

Personal Interests:
Coaching football, human health and performance


Project Management
April Chapman, Pharm.D., MBA, BCCCP

Degrees Received:

  • Doctor of Pharmacy, Cedarville University, 2020
  • Master of Business Administration, Cedarville University, 2019
  • Board Certified Critical Care Pharmacist, 2022

Pharmacy/Clinical Experience:

  • St. Vincent Healthcare (Billings, MT)
    • Pharmacy Supervisor, 2023-present
  • Novant New Hanover Regional Medical Center (Wilmington, NC)
    • Critical Care/Nutrition Support Pharmacist, 2022-2023
  • Cleveland Clinic (Cleveland, OH)
    • PGY-1 Resident, 2020-2021
    • PGY-2 Critical Care Resident, 2021-2022 

Professional Interests:
Leadership, Internal Medicine, Critical Care, Project Management

Personal Interests:
April enjoys most outdoor activities, especially hiking, camping, and skiing! As much as possible, she and her husband bring their two dogs (Loki and Murphy) along for the adventures. She also enjoys board games and traveling.


Critical Care
Stacy Emmett, RPh, BCCCP

Degrees Received:

  • Bachelor of Science in Pharmaceutical Sciences, University of Montana, 1989

Pharmacy/Clinical Experience:

  • St. Vincent Healthcare (Billings, MT)
    • Clinical Pharmacist – 2005-present
  • Harrison Memorial Hospital (Bremerton, WA)
    • Director of Pharmacy – 2000-2005
    • Clinical Coordinator – 1999–2000
  • St. Vincent Healthcare (Billings, MT)
    • Clinical Pharmacist – 1989-1999 

Professional Interests:
Critical care pharmacy in the ICU with attention to antimicrobial stewardship, CRRT, cardiac disease, interventional cardiology, and cardiac surgery. Also focused on trauma/neurocritical care.

Personal Interests:
Stacy is an avid outdoorsman who enjoys hunting, fishing, camping, and hiking. He also enjoys all kinds of trivia.


Medicine I: Orthopedic and Neurology
Riley Grubbs, Pharm.D., BCPS

Degree Received:

  • Doctor of Pharmacy, University of Montana, 2016

Pharmacy/Clinical Experience:

  • St. Vincent Healthcare (Billings, MT)
    • Clinical Pharmacist 2017- current
    • PGY-1 Resident 2016-2017

Professional Interests:
Hospital Pharmacy, Antimicrobial Stewardship, Oncology Pharmacy, Pain Management 

Personal Interests:
Riley enjoys writing/recording music, website design, and tending to his guinea pigs and dachshund. 


Emergency Medicine
Cody Maldonado, Pharm.D., BCCCP, CPP

Degree Received:

  • Doctor of Pharmacy, University of Montana, 2010
  • ASHP Emergency Medicine Certificate 2014
  • Board Certified Critical Care Pharmacist
  • Clinical Pharmacist Practitioner

Pharmacy/Clinical Experience:

Professional Interests:
Cody's professional interests include the Society of Critical Care Medicine, Emergency Medicine, toxicology, anesthesia, trauma, culture follow up, sepsis, ACLS instructing, and research projects.

Personal Interests:
Cody enjoys archery, hunting, camping, fishing, skiing, and fine dining. He also enjoys watching football and traveling to the beach. He's a dog lover (Rottweiler, border collie, schnauzer) and soccer dad (2 kids).  


Cardiology
Sarah Wheeler, Pharm.D.

Degree Received:

  • Doctor of Pharmacy, Regis University, 2018

Pharmacy/Clinical Experience:

St. Vincent Healthcare (Billings, MT) Clinical Pharmacist 2019-current PGY-1 Resident 2018-2019 Professional Interests: Cardiology, Emergency Medicine Personal Interests: Sarah enjoys golfing, hiking, her kids, attending local sporting events, and growing pumpkins.

Cardiology
Abigail Agatep, Pharm.D.

Degree Received: Doctor of Pharmacy, University of Arkansas Medical Sciences, 2016

Pharmacy/Clinical Experience: St. Vincent Healthcare (Billings, MT)

  • Clinical Pharmacist – 2019-present
  • Plano Surgical Hospital (Plano, TX)
  • Wadley Regional Medical Center (Texarkana, TX)

Professional Interests:
Cardiology, OR, Transitions of Care Personal Interests:
Abby enjoys spoiling her furbaby, Rory, her hubby's comedy, climbing, travelling, and collecting houseplants. 

Pediatrics
Tim Hanson, RPh, BCPPS, Clinical Pharmacist Specialist

Degrees Received: Bachelor of Science in Pharmaceutical Sciences, University of Montana, 1996

Pharmacy/Clinical Experience

  • St. Vincent Healthcare (Billings, MT); Clinical Pharmacist - 2000-current
  • Holy Rosary Healthcare (Miles City, MT); Clinical Pharmacist -1998-2000
  • Sidney Health Center (Sidney, MT); Clinical Pharmacist - 1996-1998

Professional Interests:
Pediatrics, NICU Personal Interests:
Tim enjoys traveling and watching his kids’ sporting events.   

Oncology
Carrie Barnhart, Pharm.D., BCOP

Degree Received:

  • Doctor of Pharmacy, North Dakota State University, 1994

Pharmacy/Clinical Experience: 

  • St. Vincent Healthcare (Billings, MT); Clinical Pharmacist Specialist, Oncology – 2016- current
  • Billings Clinic (Billings, MT); Clinical Pharmacist, Oncology – 2002-2016

Professional Interests: Carrie’s professional interests include empowering patients and caregivers by providing education about oral chemotherapy and helping them navigate the complex process of obtaining specialty medications. Carrie’s favorite practice areas within oncology are antiemetics and symptom management. Personal Interests: Carrie enjoys many year round outdoor activities including hiking, snowmobiling, skiing, boating, sailing, and dirt biking. She also finds relaxation in playing guitar, gardening, and cooking. 

Ambulatory Care
Haley Pressley, Pharm.D., BCACP

Degree Received:

  • Doctor of Pharmacy, UNC Eshelman School of Pharmacy, 2020

Pharmacy/Clinical Experience

  • Intermountain Health (Billings, MT); Ambulatory Care Clinical Pharmacist, 2022-Present
  • Inova (Fairfax, VA); PGY-2 Ambulatory Care Resident
  • West Virginia University (Marietta, OH); PGY-1 Pharmacy Resident

Professional Interests: Heart failure, diabetes, osteoporosis Personal Interests: Haley enjoys weightlifting, traveling, hiking, snowboarding, and eating cookie dough.